Every potential Olympic Games organiser assumers that the games they organise will be special, that they will help to set new, high standards both in the organisation of sports events themselves, as well as in the planning and carrying out of projects accompanying the games. Since the document entitled Agenda 21 was approved by the UN at the Earth Summit in 1992, environmental protection has become the mainstay of the discussion among the Olympic family, and the problem of sustainable planning has become one of the main features of published reports. The conclusion of the conference coincided with the Lillehammer Winter Olympics of 1994, which were praised as the first green games to be held, under the motto “White Green Games”. Four years prior, in Nagano, its organisers advertised the games with the slogan “Coexistence with nature”. London 2012, with its motto “Inspire a Generation”, highlighted the educational aspect of the events and the words “environment” and “sustainability” were on the lips of everyone everywhere in the context of every activity the organisers were undertaking. During Rio 2016, the motto was “Green Games for Blue Planet”. The goal of the article is to investigate whether these mottoes have been actually reflected in the measures taken by authorities and encompassing the period between proclaiming them as Games organisers, during the sports event itself, and during the post-Games period. The author focused on the two most recent Games (Rio 2016 and PyeongChang 2018) in order to verify whether the ambitious assumptions that filled all manners of reports have been made a reality. The diagnosis presented in the article indicates that the pursuit of satisfying the ambitions of authorities and organisers is often at odds with the precepts and concept of sustainable development. The results of the study are an essential starting point for the discussion on developing a new formula—that of the European Games, whose third edition is to be organised in Krakow in 2023, and whose respective subject matter is identical to the problems that an Olympic Games organiser must face in terms of infrastructure planning.

This paper presents the geography of the historic central district of Kraków, Poland before, during and after the first wave of the 2020 pandemic. It describes how the disneyfied main part of the UNESCO heritage site of universal values turned into a ghost town as functional changes were turning into physical ones amid restrictions. From the results of pre-pandemic processes (that, as we argue, turned the city into its disneyfied version), to the lockdown (that later revealed itself to be but the first one in a row), to the post-lockdown recovery, these changes are presented in modified figure-ground diagrams with accessibility being defined by both tangible and intangible properties. The results are set against the background of the city’s current policies regarding economic recovery, mobility and accessibility to urban green areas. As an attempt to address the present vulnerability of the once resilient historic city centres—of which Kraków Old Town is a luminous example—this paper tends to be a voice in the debate on the post-2020 planning and the strategies we will need to face the subsequent waves of this, or other, pandemics as well as consequences of climate change.

Achieving climate neutrality in construction requires more than available low-carbon technologies; it also depends on informed demand and consumers’ willingness to adopt sustainable materials. This paper examines ecological awareness, attitudes, and behavioral intentions toward eco-friendly building materials in Poland, using four independent waves of a nationwide online survey (CAWI) conducted in 2023 and 2025 (N ≈ 1000 per wave; adults aged 18–80). The questionnaires measured environmental awareness; willingness to pay a price premium (WTP) for properties built with eco-materials; actual purchasing behavior during renovations; support for regulations mandating developers’ use of ecological materials; and key socio-demographic factors. While the results confirm a pronounced attitude–behavior gap, the article details the research design and analytical approach, reports awareness, attitudes, and WTP across waves and subgroups, and discusses implications for “soft” interventions (e.g., norms, information, defaults) that can complement regulatory frameworks and financial incentives. It concludes with limitations and practical recommendations for policymakers, industry, and civil society to accelerate the adoption of low-emission materials.

This study examines the environmental implications of envelope material choices for Nearly-Zero-Energy Building (NZEB) single-family houses in carbon-intensive energy contexts. Using a comparative Life Cycle Assessment (LCA) based on EN 15804+A2, a 100 m² house was analysed over a 50-year lifespan across three archetypes: ceramic masonry (Design 1), solid log (Design 2), and timber–straw (Design 3). By maintaining a common steady-state thermal standard (U ≤ 0.20 W/(m²·K)) across all variants, the study provides a controlled comparison in which differences in GWP and non-renewable primary energy use primarily reflect material choices rather than insulation level. While both biogenic designs achieved negative embodied Global Warming Potential (GWP) in modules A1–A3 due to carbon sequestration, the results also show that structural concept and detailing strongly influence resource efficiency. Design 3 required substantially less timber volume than Design 2 while maintaining a comparable thermal standard and the lowest PENRT_A1–A3. Under the fixed operational assumptions adopted in this comparative study, module B6 remained the dominant single life-cycle contributor in all variants. The timber–straw system is therefore interpreted here as the more resource-efficient envelope strategy, whereas the solid-log solution primarily maximises timber-based carbon storage.

In the early 1990s, the first questions began to arise about the legitimacy of large-scale projects, made on a grand scale for sports events, lasting only a short period. Doubts were not only raised about the organizers' budgets and the debts often left behind, but also about the impact of these projects on the environment and society. During this time, the word 'legacy' also appeared-in academic discourse, defining the remnants of these competitions. The two most recent editions of the Summer Olympics in Europe were analysed, which did not differ in scale, but due to being played over a longer interval, differed in the awareness of the organizers and the knowledge of how to plan projects more sustainably. The purpose of this work is to demonstrate that the design of Olympic venues in the context of the idea of an Olympic legacy should take into account elements of a strategy for the duration of these venues over time. It is only over a longer period of time that one can assess whether these original assumptions were correct, and the region gained valuable spaces for recreation, or whether they led to the creation of costly unfunctional sports facilities.